Aortic and pulmonary valvesatriumcoronary sinusright and left coronary arteriesventricleThe normal heart is the size of the patient's closed fist. The venae cavae drain into the right atrium, which bears the fossa ovalis and receives the coronary sinus and the anterior cardiac vein. The atrium ...
These openings are periodically shut and open by the heart valves, depending on the phase of the heart cycle. Although there are a lot of structures in the heart diagrams, you shall not worry, we’ve got them all covered for you in these articles and video tutorials. Be sure to check...
The heart valves are uniquely designed gates that promote the unidirectional flow of blood through the heart. They are attached to special muscular appendages that help to keep them stable. This article aims to explore the embryology and gross anatomy of the heart valves. Additional discussion ...
The wall of the heart consists of three layers of tissue:Epicardium — protective layer mostly made of connective tissue.Myocardium — the muscles of the heart.Endocardium — lines the inside of the heart and protects the valves and chambers....
aortic and pulmonary valvescoronary sinusright and left coronary arteriesventricleThe heart starts as a single tube. In the course of the first three months of intra-uterine life, it develops into the two atria and ventricles, connected to the appropriate veins and arteries. The partitions (septa...
Blood flows through the heart in 1 direction, moving from the right side of the heart, through the lungs , and then returning to the left side of the heart, where it is pumped out to the rest of the body. As blood moves through the heart, 4 important valves prevent backflow. The ...
Related to Heart (anatomy): Heart valvesheart 1. the hollow muscular organ in vertebrates whose contractions propel the blood through the circulatory system. In mammals it consists of a right and left atrium and a right and left ventricle 2. the corresponding organ or part in invertebrates ...
This review will discuss the heart's anatomy, focusing on the chambers, great vessels, and valves. The human heart is located in the mediastinum, a cavity between the right and left lungs. It is positioned slightly to the left of the center of the chest
The heart valves work the same way as one-way valves in the plumbing of your home. They prevent blood from flowing in the wrong direction. Each valve has a set of flaps, called leaflets or cusps. The mitral valve has two leaflets; the others have three. The leaflets are attached to an...
Heart Valves Blood flows through the heart in one direction: from the atria to the ventricles and out the great arteries leaving the superior aspect of the heart. Four valves enforce the one-way traffic. They open and close in response to differences in blood pressure. ...